The Amel 55 is well-powered with enough sail area to move in light air, with a steady, comfortable ride offshore.
Hull Speed
The theoretical displacement-mode speed limit — determined by waterline length, not engine or sail power.
A displacement hull pushes a bow wave whose speed is limited by the waterline length.
With a waterline of 48.7′, the Amel 55 tops out around 9.4 knots in displacement mode — after that, the bow wave outruns the hull and resistance climbs steeply.
1.34 × √48.7′ LWL = 9.4 kts
Performance Ratios
Racing handicap, sail-carrying power, stability and comfort — and what each one actually tells you about a day on the water.
SA / Displacement
20.9
Powerful cruiser/racer — quick in light air, reef early when it pipes up.
Ballast / Displacement
24.6%
Light ballast — tends to be tender; reef earlier than the numbers suggest.
Displacement / Length
204
Moderate — a good balance of speed and load-carrying ability.
Comfort Ratio
38.3
Good offshore comfort — steady enough for multi-day passages.
Capsize Screening
1.74
Below the 2.0 offshore threshold — acceptable for ocean passages.
Motion & Offshore Suitability
Two ratios that matter most when you're planning passages — how the boat feels in a seaway, and whether the hull geometry is suitable for open ocean.
Comfort Ratio
38.3
Good offshore comfort — steady enough for multi-day passages.
Under 20 — Snappy, racing motion
20–30 — Acceptable coastal
30–40 — Good offshore comfort
Over 40 — Very comfortable offshore
Capsize Screening Formula
1.74
Below the 2.0 offshore threshold — acceptable for ocean passages.
Under 2.0 — Acceptable for offshore
Over 2.0 — Coastal / protected waters
Estimated Speed by Wind
Rough boat speed estimates at different true wind speeds and points of sail — derived from hull speed, SA/D, and displacement, not measured polars.
| Point of Sail |
6 kts TWS |
10 kts TWS |
15 kts TWS |
20 kts TWS |
| Close-hauled40–50° |
4.1 |
5.2 |
5.8 |
6.1 |
| Close Reach60° |
5.0 |
6.3 |
7.1 |
7.4 |
| Beam Reach90° |
6.1 |
7.8 |
8.7 |
9.0 |
| Broad Reach120–135° |
5.7 |
7.2 |
8.0 |
8.4 |
| Run150–180° |
4.5 |
5.7 |
6.4 |
6.7 |
These are simplified estimates based on hull speed (9.4 kts),
SA/D (20.9), and empirical efficiency curves — not instrument-measured
polars. Real-world speed varies with sea state, bottom condition, sail trim, and current.
Speeds in gold approach hull speed;
bold gold means near or at hull speed.
Wind Range & Comfort Envelope
Estimated wind ranges for comfortable sailing on the Amel 55 — based on sail area, ballast, and displacement characteristics.
Ghost
Sweet Spot
Reef
Heavy
0–6 kts
6–16 kts
16–24 kts
24+ kts
Ghosting
0–6 kts
Light air, motor-sailing likely. Need patience and a light genoa.
Sweet Spot
6–16 kts
Comfortable under full sail. Best speed-to-comfort ratio.
Time to Reef
16–24 kts
Time to shorten sail. Reef the main, swap to a working jib.
Heavy Weather
24+ kts
Storm conditions. Storm jib or bare poles. Seek shelter if coastal.
How It Compares
Side-by-side with the boats most often cross-shopped against the Amel 55.
|
Amel 55 |
Amel 54 |
Amel Super Maramu |
Hylas 57 |
Oyster 575 |
| Dimensions |
| LOA |
56.8 |
53.8 |
52.5 |
59.5 |
59.0 |
| LWL |
48.7 |
50.3 |
41.3 |
52.9 |
51.5 |
| Beam |
16.4 |
15.8 |
15.1 |
17.0 |
16.4 |
| Displacement |
52 |
35,000 |
35,840 |
57 |
61 |
| Ballast |
13 |
— |
12,320 |
20 |
17 |
| Sail Area |
1,843 |
1,507 |
1,302 |
1,636 |
2,097 |
| Performance |
| SA/Disp |
20.9 |
22.5 |
19.2 |
17.5 |
21.5 |
| Bal/Disp |
24.6 |
— |
34.4 |
35.6 |
28.9 |
| Comfort |
38.3 |
26.6 |
33.2 |
37.0 |
42.4 |
| Capsize |
1.74 |
1.93 |
1.83 |
1.76 |
1.66 |
| Hull Speed |
9.4 |
9.5 |
8.6 |
9.8 |
9.6 |